In my game scene has multiple objects. All they swallow touch and registered with a priority > 0.
After a few touches, some of them no longer respond to the touch, and most bizarre menu button(CCMenuItemSprite) does not respond.
It happens by accident somehow. And in the release and debug.
It may manifest itself after the second contact, may, after the tenth and may not manifest itself until the next run.
A bit similar to that which is an uninitialized variable, but in my code, I just registered TouchDelegate and swallow touches.
Sorry for my English is not my native language.